<!-- 左边导航栏 -->
<div class="col-sm-2">
    <a href="javascript:;" class="list-group-item active">栏目管理</a>
    <a href="{:url('backend/Category/index')}" class="list-group-item">栏目列表</a>

    <a href="javascript:;" class="list-group-item active">文章管理</a>
    <a href="{:url('backend/Article/index')}" class="list-group-item">文章列表</a>
</div>